Pour ½ cup of dry bicarbonate of soda directly into the drain. Try to get it past the drain strainer and into the pipe.
A slow-draining sink is a universal frustration. Before you reach for a toxic, gel-based chemical cleaner or call an expensive plumber, there is a powerful, safe, and inexpensive solution already in your cupboard: bicarbonate of soda (baking soda). sink unblocker bicarbonate soda
Here is the science and the step-by-step method to unblock your sink using bicarbonate of soda and its essential partner, vinegar. On its own, bicarbonate of soda (a base) is a mild alkali that can dissolve some grease and dirt. However, its true power is unlocked when combined with a weak acid—specifically, distilled white vinegar. Pour ½ cup of dry bicarbonate of soda
Immediately pour 1 cup of white vinegar down the drain. You will hear a vigorous fizzing sound—this is good. Before you reach for a toxic, gel-based chemical
Pour a full kettle of boiling water directly down the drain. This softens any greasy or waxy buildup, making it easier for the next step to work.
While it won’t dissolve a solid metal hairpin or a lost earring, bicarbonate of soda is remarkably effective against the most common cause of sink blockages: . This includes grease, soap scum, food particles, and hair.
Quickly cover the drain opening with a plug or a damp cloth. This traps the carbon dioxide gas inside the pipe, forcing it to push against the blockage rather than escaping upwards. Leave it for 15–30 minutes .